CN104051123B - Electromagnet structure - Google Patents
Electromagnet structure Download PDFInfo
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- CN104051123B CN104051123B CN201410253136.3A CN201410253136A CN104051123B CN 104051123 B CN104051123 B CN 104051123B CN 201410253136 A CN201410253136 A CN 201410253136A CN 104051123 B CN104051123 B CN 104051123B
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Abstract
A kind of electromagnet structure, belongs to electrical equipment control and protective device technical field.Comprise iron core, bearing, coil, elastic component and yoke component, yoke component comprises a pair yoke, permanent magnet and point magnetic sheet are respectively set in the yoke chamber of this pair yoke, feature: also include non-magnetizer layer, this non-magnetizer layer is combined in the surface of a pair yoke or the surface of iron core, when coil electricity and iron core overcomes the reaction force of elastic component and is in the state with the adhesive of a pair yoke phase time, be configured to air gap between iron core and a pair yoke by the thickness of the non-magnetizer layer on the surface be incorporated on a pair yoke or be configured to the air gap between iron core and a pair yoke by the thickness of non-magnetizer layer on the surface being incorporated into iron core.Have and controlled excellent effect is stablized to space; Structure is terse, and non-magnetizer layer dimensionally stable is controlled and can ensure the air gap of lasting stability, and the functional reliability of electromagnet is significantly improved.
Description
Technical field
The invention belongs to electrical equipment control and protective device technical field, be specifically related to a kind of electromagnet structure.
Background technology
Electromagnet is widely used in various control apparatus as a kind of driver part, comprises support; Be arranged on the iron core as movement parts on support or armature, as the yoke of static element or static iron core, coil and the spring as elastic component for the motion of actuation movement part.When the coil is energized, electromagnetic force is formed between movement parts and static element, movement parts overcomes the active force of elastic component and move in the direction to static element, otherwise when the coil is de-energized, movement parts is moved towards the direction deviating from static element under the restoring force effect of elastic component.
Because the alternating electromagnet power consumption, volume and the noise that work under alternating current operating mode are large, and difficulty of processing is high, thus progressively added by the power module with rectification function the form of DC electromagnet substitute.For energy-conservation and reduce the object of volume, DC electromagnet uses permanent-magnet structure usually.
In prior art, generally pad is used to the disposal options forming air gap between the yoke of the DC electromagnet of permanent-magnet structure and iron core, namely on yoke and corresponding to iron core, pad is set towards the position of the side of elastic component, and in order to embody good energy-saving effect, usually the Thickness Design of pad is obtained thin as far as possible, so just occurred that thickness is even the ultra-thin pad of 0.04 ㎜ lower than 0.5 ㎜, meagre pad has positive effect for energy-conservation, but the processing of pad and assembly difficulty are enlarged markedly, because pad more thin more easily appearance is such as out of shape, processing dimension is difficult to the technical problem controlled and rigging error cannot be avoided and so on, in addition, due to the evenness to pad, the control difficulty of surface roughness and overlay coating etc. increases, therefore corresponding impact is produced on the job stability of electromagnet.
The technical information about electromagnet structure can be seen in disclosed Chinese patent literature, typically as Authorization Notice No. CN202905358U recommendation " there is the electromagnet of contact boss ", this patent formula just forms boss on iron core binding face corresponding thereto at yoke, makes to form air gap between yoke and iron core by this boss.Aforesaid shortcoming can be made up to a great extent using impact style mentality of designing directly formed as the boss of structure air gap on yoke specifically, and specification the 0037th section of technique effect referred of this patent can be embodied objectively.But there is following shortcoming: first, the size Control difficulty of boss is large, if the height of boss and this sensitive parameter of cross section can not get effective control, so be difficult in use bear the frequent impact of iron core to it, namely in use there is the anxiety of distortion, affect the stability of the lasting work of electromagnet; Secondly, process loaded down with trivial details, because in whole manufacture process, need first punching molding yoke, then upsetting goes out boss on yoke, then at plated surface coating.
In view of above-mentioned prior art, be necessary to be improved, the applicant has done positive and useful design for this reason, finally technical scheme described below is defined, and carried out analogue test in the laboratory of the applicant taking under secrecy provision, result shows beyond thought technique effect.
Summary of the invention
Task of the present invention is to provide a kind of and uses the air gap that effectively controls the lasting stability between yoke and iron core without the need to building the air gap between yoke and iron core in the mode arranging pad or form boss and structure simply manufactures electromagnet structure easily.
Task of the present invention has been come like this, a kind of electromagnet structure, comprise an iron core, for arranging iron core and a bearing for limiting iron core, be arranged on the coil on bearing, be arranged between iron core with bearing and order about under coil power failure state iron core motion elastic component and position and iron core corresponding and the yoke component be fixed on bearing, wherein: described yoke component comprises the state that faces each other, and to correspond to a pair shape of the both sides of described iron core identical and all in C font or the yoke of U-shaped, a permanent magnet and one point of magnetic sheet is respectively provided with in the yoke chamber of this pair yoke, between the chamber diapire of permanent magnet in yoke chamber and point magnetic sheet, described iron core and a pair described yoke are made by permeability magnetic material, feature is: also include non-magnetizer layer, this non-magnetizer layer is combined in the surface of described a pair yoke or is combined in the surface of described iron core, when described coil electricity and iron core overcomes the reaction force of described elastic component and is in the state with the adhesive of a pair yoke phase time, be configured to air gap between iron core and a pair yoke by the thickness of the non-magnetizer layer on the surface be incorporated on a pair yoke or be configured to the air gap between iron core and a pair yoke by the thickness of non-magnetizer layer on the surface being incorporated into iron core.
In a specific embodiment of the present invention, the vertical sectional shape of described iron core is I-shaped, this iron core comprises iron core cylinder, upper core plate and lower core plate, upper core plate is formed in the upper end of iron core cylinder, lower core plate is formed in the lower end of iron core cylinder, the upper end of described elastic component is bearing on lower core plate, and the lower end of elastic component is bearing on described bearing, described non-magnetizer layer is combined in the side surface of described yoke towards described yoke chamber and the side surface back to yoke chamber or is combined in the upper and lower surface of upper core plate and lower core plate.
In another specific embodiment of the present invention, described bearing comprises each other with a pair iron core limiting frame that aspectant state is arranged, respectively be configured with iron core in the side in opposite directions of this pair iron core limiting frame and limit chamber, described iron core is between a pair iron core limiting frame and limit chamber with iron core and match, and described coil is arranged on the outer wall at the middle part of the short transverse of a pair iron core limiting frame.
In another specific embodiment of the present invention, described permeability magnetic material is iron, steel or silicon steel sheet.
In another specific embodiment of the present invention, described non-magnetizer layer is layers of copper or the permeability magnetic material being formed with non-magnetic oxidation film layer through salt bath process on surface.
Also have in a specific embodiment of the present invention, the thickness of described non-magnetizer layer is 0.04-1 ㎜.
More of the present invention and in a specific embodiment, the thickness of described non-magnetizer layer is 0.06-0.8 ㎜.
In an of the present invention and then specific embodiment, the thickness of described non-magnetizer layer is 0.08-0.6 ㎜.
Of the present invention again more and in a specific embodiment, the thickness of described non-magnetizer layer is 0.1-0.4 ㎜.
In an again of the present invention and then specific embodiment, described elastic component is spring.
Technical scheme provided by the invention is owing to appointing the surface conjunction selecting one to have non-magnetizer layer at the iron core be made up of permeability magnetic material and a pair yoke, thus iron core be in and the state of a pair yoke adhesive time by a pair ironing surface non-magnetizer layer of yoke or form the air gap between iron core and a pair yoke by the thickness of the non-magnetizer layer on iron core surface, have and controlled excellent effect stablized to space; The boss passing through to arrange on yoke pad or formation owing to having abandoned prior art serves as the Design Mode of the air gap between iron core and yoke, make structure more terse, and because non-magnetizer layer has stable large plane, can not be out of shape because of the frequent impact of iron core, non-magnetizer layer dimensionally stable is controlled and can ensure the air gap of lasting stability, and the functional reliability of electromagnet is significantly improved.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention structure chart.
Fig. 2 is schematic diagram under coil power failure state.
Fig. 3 is schematic diagram under coil obtains electricity condition.
Fig. 4 is another example structure figure of iron core of the present invention.
Fig. 5 be under coil is in power failure state and iron core and yoke are in separation point position time the magnetic flux schematic diagram that produces of coil current.
Fig. 6 be coil be under electricity condition and iron core and yoke are in attracted position time the magnetic flux schematic diagram that produces of coil current.
Embodiment
In order to enable the auditor of Patent Office especially the public clearly understand technical spirit of the present invention and beneficial effect, applicant will elaborate below by way of example, but be not all the restriction to the present invention program to the description of embodiment, any conceive according to the present invention done be only pro forma but not substantial equivalent transformation and all should be considered as technical scheme category of the present invention.
Embodiment 1:
Every directivity concept relating to upper and lower, left and right and so on is all that object is to facilitate public understanding the present invention and is not the specific restriction of technology contents of the present invention for the location status residing for the figure be described in the following description.
Refer to Fig. 1, give belong to electromagnet structure system an iron core 1, for iron core 1 is set and to iron core 1 implement the bearing 2 limited, the coil 3 be arranged on bearing 2, be arranged between iron core 1 with bearing 2 and order about under coil 3 is in power failure state elastomer 4 and position that iron core 1 moves upward and iron core 1 corresponding and the yoke component 5 be fixed on bearing 2.
Aforesaid yoke component 5 comprises the state that faces each other and corresponds to the identical and equal yoke 51 of (also can be U-shaped) in C font of a pair shape of the both sides of aforementioned iron core 1, a permanent magnet 5111 and one point of magnetic sheet 5112 is respectively provided with, between the chamber diapire of permanent magnet 5111 in yoke chamber 511 and point magnetic sheet 5112 in the yoke chamber 511 of this pair yoke 51.Because a pair yoke 51 faces each other setting, therefore the yoke chamber 511 of a pair yoke 51 is mutually corresponding.Iron core 1 and a pair yoke 51 are made by permeability magnetic material, that is adopt permeability magnetic material to serve as iron core 1 and a pair yoke 51.In the present embodiment, permeability magnetic material is iron, or is steel, also can use silicon steel sheet.
The vertical sectional shape of aforesaid iron core 1 is I-shaped.This iron core 1 comprises iron core cylinder 11, upper core plate 12 and lower core plate 13, upper core plate 12 is formed in the upper end of iron core cylinder 11, lower core plate 13 is formed in the lower end of iron core cylinder 11, thus iron core cylinder 11, upper core plate 12 and lower core plate 13 three are configured to vertical sectional shape is I-shaped structure.The upper end of aforesaid elastic component 4 is bearing on lower core plate 13, and lower end is bearing on bearing 2, and this elastic component 4 is spring.
Above mentioned bearing 2 comprises each other with a pair iron core limiting frame 21 that aspectant state is arranged, respectively be configured with in the side in opposite directions of this pair iron core limiting frame 21 iron core adapted with the shape of iron core 1 and limit chamber 211, iron core 1 is between a pair iron core limiting frame 21 and limit chamber 211 with iron core and match, and aforesaid coil 3 arranges winding in sight on the outer wall at the middle part of the short transverse of a pair iron core limiting frame 21.The relative iron core 1 of a pair yoke 51 of aforementioned yoke component 5 configures and is fixed on a pair iron core limiting frame 21.
Refer to Fig. 2 and Fig. 3, technical essential as technical scheme provided by the invention: electromagnet structure also includes non-magnetizer layer 6, this non-magnetizer layer 6 is combined in the surface of a pair yoke 51, signal from Fig. 2 and Fig. 3: non-magnetizer layer 6 is combined in a pair yoke 51 towards the surface of the side in aforementioned yoke chamber 511 and be combined in a pair yoke 51 back to a side surface in yoke chamber 511, is that is respectively combined with non-magnetizer layer 6 at a pair yoke 51 towards yoke chamber 511 and back to a side surface in yoke chamber 511.In the present embodiment, non-magnetizer layer 6 is layers of copper, and thickness is 0.04-1 ㎜, and be preferably 0.06-0.8 ㎜, be 0.08-0.6 ㎜ preferably, be 0.1-0.4 ㎜ better, be preferably 0.25 ㎜, the present embodiment is 0.25 ㎜.
As shown in Figure 3, under coil 3 is in "on" position, when iron core 1 overcomes the reaction force (also can claim actuating force) of aforementioned elastic parts 4 and is in the state with the adhesive of a pair yoke 51 phase, form the magnetic gap 7 between iron core 1 and a pair yoke 51 by the aforesaid thickness being incorporated into the non-magnetizer layer 6 on the surface of a pair yoke 51.More precisely, the distance of the below (also can claim lower surface) of the upper core plate 12 of aforementioned iron core 1 and the magnetic gap 7 between the below (also can claim lower surface) of lower core plate 13 and the permeability magnetic material of a pair yoke 51 just for be incorporated into a pair yoke 51 towards yoke chamber 511 a side surface and respectively with the thickness of upper and lower iron core plate 12,13 corresponding non-magnetizer layers 6.Structure like this relative to prior art on yoke setting-up piece and by the air gap between the thickness build-up iron core of pad and yoke or on yoke upsetting go out boss and build for the air gap between iron core and yoke by the height of boss, the present embodiment has on the surface (concept on surface is mentioned above) of a pair yoke 51 technique effect referred in the superincumbent technique effect hurdle of applicant in conjunction with non-magnetizer layer 6.
As shown in the above description, a pair yoke 51 is made up of two kinds of materials of different nature in fact, be composite material to form, be positioned at the aforesaid copper of non-magnetizer layer 6(of yoke 51 both side surface) surface of the yoke material that exists and aforementioned permeability magnetic material as band steel form is such as bonded under stress by roll compaction equipment roll compacting, then obtain a pair yoke 51 with impact style.The technique of plating painting or vacuum sputtering also can be adopted non-magnetic layer 6 to be incorporated into the both side surface of yoke 51.
As shown in Figure 2, under coil 3 is in power failure state, makes iron core 1 to top offset by the restoring force effect of elastic component 4, make electromagnet be in separation point position (namely iron core 1 and yoke 51 are in separation point position).
Refer to Fig. 5 and Fig. 6, the iron core 1 of electromagnet is in and the separation point position of a pair yoke 51 (as Fig. 5), there is a larger working gas gap C, coil leads to big current, electric current produces as figure magnetic flux, between iron core 1 and a pair yoke 51, produce the suction-combining force Fc, iron core 1 overcomes counter spring force, reduces direction adhesive to air gap.Iron core 1 and a pair yoke 51 are in attracted position (as Fig. 6), now the thickness of non-magnetizer layer 6 is configured to the air gap 7 between described iron core 1 and yoke 51, because non-magnetizer layer 6 has stable large plane, can not be out of shape because of the frequent impact of iron core 1, non-magnetizer layer 6 dimensionally stable is controlled and can ensure the air gap of lasting stability, and the functional reliability of electromagnet is significantly improved.And when iron core 1 and a pair yoke 51 are in attracted position for a long time, for energy-conservation requirement, can electric current be reduced, because the air gap of non-magnetizer layer 6 is less, therefore need the electric current of maintenance also less.
Embodiment 2:
Refer to Fig. 4, in embodiment 1, non-magnetizer layer 6 is incorporated into the side surface of a pair yoke 51 towards yoke chamber 511 and the side surface back to yoke chamber 511, there is not non-magnetizer layer 6 in iron core 1, and the present embodiment side is contrary, only on iron core 1 in conjunction with non-magnetizer layer 6, there is not non-magnetizer layer 6 in the surface of a pair yoke 51.From the signal of Fig. 4, iron core 1 upper core plate 12 towards on and a downward side surface be respectively combined with non-magnetizer layer 6, simultaneously lower core plate 13 towards on and towards under a side surface be respectively combined with non-magnetizer layer 6.So when coil 3 is in "on" position, iron core 1 overcomes the reaction force (also can claim actuating force) of elastic component 4 and is in the state with the adhesive of a pair yoke 51 phase, by be incorporated into upper core plate 12 towards under a side surface non-magnetizer layer 6 and by be incorporated into lower core plate 13 towards under the thickness of non-magnetizer layer 6 of a side surface form air gap 7 between iron core 1 and a pair yoke 51.
In the present embodiment, non-magnetizer layer 6 is for being formed with the permeability magnetic material of non-magnetic oxidation film layer on surface through salt bath process, specifically, with core material namely with aforesaid permeability magnetic material through QPQ(salt bath Quench-Polish-Quench) process the oxide layer that rear surface formed and substitute, obtain by QPQ technique or similar technique the technology contents category that non-magnetizer layer 6 all belongs to present patent application.According to the example of drawing inferences about other cases from one instance, the non-magnetizer layer 6 in embodiment 1 also can use salt bath process to obtain.All the other are all with the description to embodiment 1.
In sum, technical scheme provided by the invention overcomes the shortcoming in prior art, completes invention task, objectively embodies the technique effect described in the superincumbent technique effect hurdle of applicant.
Claims (10)
1.
a kind of electromagnet structure, comprise an iron core (1), for arranging iron core (1) and a bearing (2) for limiting iron core (1), be arranged on the coil (3) on bearing (2), be arranged between iron core (1) with bearing (2) and order about under coil (3) power failure state elastic component (4) and position that iron core (1) moves and iron core (1) corresponding and the yoke component (5) be fixed on bearing (2), wherein: described yoke component (5) comprises the state that faces each other, and to correspond to a pair shape of the both sides of described iron core (1) identical and all in C font or the yoke (51) of U-shaped, a permanent magnet (5111) and one point of magnetic sheet (5112) is respectively provided with in the yoke chamber (511) of this pair yoke (51), permanent magnet (5111) is positioned between the chamber diapire in yoke chamber (511) and point magnetic sheet (5112), described iron core (1) and described a pair yoke (51) are made by permeability magnetic material, it is characterized in that: also include non-magnetizer layer (6), this non-magnetizer layer (6) is combined in the surface of described a pair yoke (51) or is combined in the surface of described iron core (1), when described coil (3) is energized and iron core (1) overcomes the reaction force of described elastic component (4) and is in the state with the phase adhesive of a pair yoke (51), be configured to air gap (7) between iron core (1) and a pair yoke (51) by the thickness of the non-magnetizer layer (6) on the surface be incorporated on a pair yoke (51) or be configured to the air gap (7) between iron core (1) and a pair yoke (51) by the thickness of non-magnetizer layer (6) on the surface being incorporated into iron core (1).
2.
electromagnet structure according to claim 1, the vertical sectional shape that it is characterized in that described iron core (1) is I-shaped, this iron core (1) comprises iron core cylinder (11), upper core plate (12) and lower core plate (13), upper core plate (12) is formed in the upper end of iron core cylinder (11), lower core plate (13) is formed in the lower end of iron core cylinder (11), the upper end of described elastic component (4) is bearing on lower core plate (13), and the lower end of elastic component (4) is bearing on described bearing (2), described non-magnetizer layer (6) is combined in the side surface of described yoke (51) towards described yoke chamber (511) and the side surface back to yoke chamber (511) or is combined in the upper and lower surface of upper core plate (12) and lower core plate (13).
3.
electromagnet structure according to claim 1, it is characterized in that described bearing (2) comprises each other with a pair iron core limiting frame (21) that aspectant state is arranged, respectively be configured with iron core in the side in opposite directions of this pair iron core limiting frame (21) and limit chamber (211), described iron core (1) to be positioned between a pair iron core limiting frame (21) and to limit chamber (211) with iron core and matches, and described coil (3) is arranged on the outer wall at the middle part of the short transverse of a pair iron core limiting frame (21).
4.
electromagnet structure according to claim 1, is characterized in that described permeability magnetic material is iron, steel or silicon steel sheet.
5.
electromagnet structure according to claim 1 and 2, is characterized in that described non-magnetizer layer (6) is for layers of copper or the permeability magnetic material being formed with non-magnetic oxidation film layer through salt bath process on surface.
6.
electromagnet structure according to claim 5, is characterized in that the thickness of described non-magnetizer layer (6) is 0.04-1 ㎜.
7.
electromagnet structure according to claim 6, is characterized in that the thickness of described non-magnetizer layer (6) is 0.06-0.8 ㎜.
8.
electromagnet structure according to claim 6, is characterized in that the thickness of described non-magnetizer layer (6) is 0.08-0.6 ㎜.
9.
electromagnet structure according to claim 6, is characterized in that the thickness of described non-magnetizer layer (6) is 0.1-0.4 ㎜.
10.
electromagnet structure according to claim 1, is characterized in that described elastic component (4) is spring.
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| CN201410253136.3A CN104051123B (en) | 2014-06-09 | 2014-06-09 | Electromagnet structure |
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| CN201410253136.3A CN104051123B (en) | 2014-06-09 | 2014-06-09 | Electromagnet structure |
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| CN104051123B true CN104051123B (en) | 2016-03-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105161372A (en) * | 2015-09-24 | 2015-12-16 | 林勇 | Magnetic latching relay structured system |
| CN106303791B (en) * | 2016-11-07 | 2019-03-15 | 朝阳聚声泰（信丰）科技有限公司 | Anti-interference earphone line |
| CN112131772B (en) * | 2020-09-29 | 2022-05-10 | 哈尔滨工业大学 | Simulation method of non-magnetic conductive layer applied to static characteristic simulation of magnetic latching relay |
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| CN202067625U (en) * | 2010-12-31 | 2011-12-07 | 中国航天科技集团公司第六研究院第十一研究所 | Proportional electromagnet |
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| CN1070511A (en) * | 1991-09-11 | 1993-03-31 | 张凡 | Magnetic-holding electric magnet |
| CN201868177U (en) * | 2010-11-19 | 2011-06-15 | 常熟开关制造有限公司(原常熟开关厂） | Electromagnet structure with adjustable air gap |
| CN202905358U (en) * | 2012-11-12 | 2013-04-24 | 常熟开关制造有限公司(原常熟开关厂） | Electromagnet with contact protrusions |
| CN202905357U (en) * | 2012-11-12 | 2013-04-24 | 常熟开关制造有限公司(原常熟开关厂） | Electromagnet with regulating spring |
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